Acer Aspire / Swift screw size
M2.5 · 4 to 6 mm long
Acer Aspire / Swift takes M2.5 metric screws in lengths from 4 to 6 mm.
It is listed for base cover screws, black flat/pan head.
Head and drive, as the source states them: pan head.
This entry is marked reported and comes from techsparewarehouse.com.
For reference, M2.5 is 2.5 mm across the threads at 0.45 mm pitch. The imperial size people confuse it with: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
Acer Aspire / Swift screw specifications
One row per fitment record. Head, drive are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M2.5 | 4–6 mm | 0.45 mm | Pan head | not stated | base cover screws, black flat/pan headblack finish | Reported |
Fitment records and sources
base cover screws, black flat/pan head
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- If several screws hold the same part, check that they are all the same length before assuming they are.
- Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 4–6 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
Buy these screws at TechSpare Warehouse
In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.
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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
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M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
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M2.5 x 6mm Laptop Motherboard Replacement Screws Wafer Head 10-Pack Black
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10x M2.5 x 6mm Phillips Screws for Lenovo ThinkPad X131e Chromebook LCD Hinge
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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Devices whose records share a thread with Acer Aspire / Swift, closest length match first.
- Raspberry Pi HAT stacking (Pololu / Adafruit) also M2.5 × 6 mm
- Dell Latitude 7330 Rugged Extreme also M2.5 × 4–5 mm
- Takachi RPI aluminium Raspberry Pi case also M2.5 × 4 mm
- Dell Latitude 5411 also M2.5 × 4–5 mm
- Raspberry Pi 3B / 4B / 5 / Zero 2 standoff kits also M2.5 × 6 mm
- CubeSat internal component mounting to structural panels also M2.5 × 5 mm
- Lenovo IdeaPad Y410p also M2.5 × 4 mm
- Lenovo Flex C340-15IML also M2.5 × 4.5 mm
Questions about Acer Aspire / Swift screws
- What size screw does Acer Aspire / Swift use?
- M2.5 × 4–6 mm for base cover screws, black flat/pan head.
- How long are the screws in Acer Aspire / Swift?
- The records range from 4 to 6 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for Acer Aspire / Swift?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Acer Aspire / Swift?
- TechSpareWarehouse (our own store) lists M2.5 x 4mm, M2.5 x 5mm and M2.5 x 6mm, which match lengths in the records above.